Sifat Fisis Mekanis Balok Laminasi dari Batang Kelapa (Cocos nucifera L.) dan Kayu Kemiri (Aleurites moluccana Wild.)
Sitompul, Astri Novita
MetadataShow full item record
The Utilizing forest as source of wood raw materials is tend to increase, while the supply of wood is limited. As a result it can influenced the sustainable of ecosystem and the forest condition it self. The main objective of this was to find out the substitution of construction board (lumber and plywood). This research concerned to using coconut board and candlenut board as alternative raw material in producing laminated board. It is needed by industrial sector as a raw material because wood has been limited and it may solve environmental problem. In this research, coconut board and candle nut board consist of three layer (3 layer, 5 layer, and 7 layer). Coconut board were used as face and back layers and candle nut board was used as core and bonded by Isocyanate and PVAc by different ratio of 100:15. Evaluation on physical and mechanical properties were measured based on ASTM D 148-95. The results showed : 1). The value of density of gluelam were in the range 0,63–0,68 g/cm3 2). The value of moisture content were in the range 14,14-14,37 % 3). The value of water absorption for 2 and 24 hours were in the range 8,61- 8,74 % and 21,09-21,29 % 4). The value of thickness swelling for 2 and 24 hours were in the range 0,79-0,80 % and 1,57-,59 % 5). The value of modulus of elasticity (MOE) were in the range 7519,63-18358,40 kgf/cm2 6). The value of modulus of rupture (MOR) were in the range 180,34-364,04 kgf/cm2 7). The value of internal bond (IB) were in the range 2,48-3,95 kgf.